918998363 has 2 divisors, whose sum is σ = 918998364. Its totient is φ = 918998362.

The previous prime is 918998347. The next prime is 918998407. The reversal of 918998363 is 363899819.

It is a weak prime.

It is an emirp because it is prime and its reverse (363899819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 918998363 - 2⁴ = 918998347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918998299 and 918998308.

It is not a weakly prime, because it can be changed into another prime (918998303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459499181 + 459499182.

It is an arithmetic number, because the mean of its divisors is an integer number (459499182).

Almost surely, 2^918998363 is an apocalyptic number.

918998363 is a deficient number, since it is larger than the sum of its proper divisors (1).

918998363 is an equidigital number, since it uses as much as digits as its factorization.

918998363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 56.

The square root of 918998363 is about 30314.9857826125. The cubic root of 918998363 is about 972.2357339326.

The spelling of 918998363 in words is "nine hundred eighteen million, nine hundred ninety-eight thousand, three hundred sixty-three".